How do I prevent this NPC regen from freezing the game?

How can I prevent the game from freezing just before the NPC respawns?

Instead of it just cloning itself all the time and backing it up, would it be wise for it clone from lighting? Anyway here is the script that is inside the NPC

The top part of the code (function Respawn) is whats making NPC freezing the game before respawn. Also Output says nothing about this

Thanks!

local Model = script.Parent
Model:MakeJoints()
wait()
Model:MakeJoints()
local Backup = Model:clone()
Backup:MakeJoints()
wait()
Backup:MakeJoints()

function Respawn()
	Model:breakJoints()
	script.Parent = Model.Parent
	wait(5)
	if (Model ~= nil) then 
		Model:Destroy()
	end 
	Backup:MakeJoints()
	wait()
	Backup:MakeJoints()
	Model = Backup:clone()
	Model:MakeJoints()
	wait()
	Model:MakeJoints()
	local spawn = game:GetService("Workspace"):GetChildren()
	wait()
	if (Model.Configuration["Do not spawn on SpawnLocations?"].Value == false) then 
		mvspawn = false
		for i = 1, #spawn do 
			if (spawn[i].ClassName == "SpawnLocation") then
				team = game:GetService("Teams"):GetChildren()[Model.Configuration["Attack specific team? (Read the help.)"].Value]
				if (team ~= nil) then 
					if (team.ClassName == "Team") then
						if (spawn[i].TeamColor == team.TeamColor) then
							delay(0.,function()  
								Model:MoveTo(spawn[i].Position)
							end)
							fft__ = spawn[i].Duration
							mvspawn = true
						end
					else
						print("Invalid team specified.")
					end
				else
					if (Model.Configuration["Attack specific team? (Read the help.)"].Value ~= 0) then 
						print("Non-existant team specified.")
						delay(0,function()  
							Model:MoveTo(spawn[i].Position)
						end)
						fft__ = spawn[i].Duration
					else
						if (spawn[i].Neutral == true) then 
							delay(0,function()  
								Model:MoveTo(spawn[i].Position)
							end)
							fft__ = spawn[i].Duration
							mvspawn = true
						end 
					end
				end
			end 
		end 
		if (mvspawn == false) then 
			delay(0,function()  
				Model:MoveTo(Vector3.new(0,10,0))
			end)
			fft__ = spawn[i].Duration
		end
	end 
	Model.Parent = script.Parent
	Model:makeJoints()
	wait(0)
	script:Destroy()
end

Model.Humanoid.Died:connect(Respawn)

function waitForChild(parent, childName)
	local child = parent:findFirstChild(childName)

	if child then
		return child
	end

	while true do
		print(childName)

		child = parent.ChildAdded:wait()

		if child.Name==childName then
			return child
		end
	end
end

-- declarations

local Figure = script.Parent
local Head = waitForChild(Figure, "Head")
local Humanoid = waitForChild(Figure, "Humanoid")

Figure.PrimaryPart = Head

-- ANIMATION

function Joint(Name, Part0, Part1, C0, C1, MaxVelocity)
	local Motor = Instance.new("Motor")

	Motor.C0 = C0
	Motor.C1 = C1
	Motor.MaxVelocity = MaxVelocity
	Motor.Name = Name
	Motor.Parent = Part0
	Motor.Part0 = Part0
	Motor.Part1 = Part1
end

-- declarations

local Torso = waitForChild(Figure, "Torso")
local LeftArm = waitForChild(Figure, "Left Arm")
local LeftLeg = waitForChild(Figure, "Left Leg")
local RightArm = waitForChild(Figure, "Right Arm")
local RightLeg = waitForChild(Figure, "Right Leg")

local Joints = {
{"Right Shoulder", Torso, RightArm, CFrame.new(1, 0.5, 0, 0, 0, 1, 0, 1, 0, -1, -0, -0), CFrame.new(-0.5, 0.5, 0, 0, 0, 1, 0, 1, 0, -1, -0, -0), 0.5},
{"Left Shoulder", Torso, LeftArm, CFrame.new(-1, 0.5, 0, -0, -0, -1, 0, 1, 0, 1, 0, 0), CFrame.new(0.5, 0.5, 0, -0, -0, -1, 0, 1, 0, 1, 0, 0), 0.5},
{"Right Hip", Torso, RightLeg, CFrame.new(1, -1, 0, 0, 0, 1, 0, 1, 0, -1, -0, -0), CFrame.new(0.5, 1, 0, 0, 0, 1, 0, 1, 0, -1, -0, -0), 0.10000000149012},
{"Left Hip", Torso, LeftLeg, CFrame.new(-1, -1, 0, -0, -0, -1, 0, 1, 0, 1, 0, 0), CFrame.new(-0.5, 1, 0, -0, -0, -1, 0, 1, 0, 1, 0, 0), 0.10000000149012},
{"Neck", Torso, Head, CFrame.new(0, 1, 0, -1, -0, -0, 0, 0, 1, 0, 1, 0), CFrame.new(0, -0.5, 0, -1, -0, -0, 0, 0, 1, 0, 1, 0), 0.10000000149012}}

Torso:breakJoints()

for _, v in pairs(Joints) do
	Joint(unpack(v))
end

local RightShoulder = waitForChild(Torso, "Right Shoulder")
local LeftShoulder = waitForChild(Torso, "Left Shoulder")
local RightHip = waitForChild(Torso, "Right Hip")
local LeftHip = waitForChild(Torso, "Left Hip")
local Neck = waitForChild(Torso, "Neck")
local Humanoid = waitForChild(Figure, "Humanoid")
local pose = "Standing"

local toolAnim = "None"
local toolAnimTime = 0

-- functions

function onRunning(speed)
	if speed>0 then
		pose = "Running"
	else
		pose = "Standing"
	end
end

function onDied()
	pose = "Dead"
end

function onJumping()
	pose = "Jumping"
end

function onClimbing()
	pose = "Climbing"
end

function onGettingUp()
	pose = "GettingUp"
end

function onFreeFall()
	pose = "FreeFall"
end

function onFallingDown()
	pose = "FallingDown"
end

function onSeated()
	pose = "Seated"
end

function onPlatformStanding()
	pose = "PlatformStanding"
end

function moveJump()
	RightShoulder.MaxVelocity = 0.5
	LeftShoulder.MaxVelocity = 0.5
	RightShoulder.DesiredAngle = 3.14
	LeftShoulder.DesiredAngle = -3.14
	RightHip.DesiredAngle = 0
	LeftHip.DesiredAngle = 0
end


-- same as jump for now

function moveFreeFall()
	RightShoulder.MaxVelocity = 0.5
	LeftShoulder.MaxVelocity = 0.5
	RightShoulder.DesiredAngle = 3.14
	LeftShoulder.DesiredAngle = -3.14
	RightHip.DesiredAngle = 0
	LeftHip.DesiredAngle = 0
end

function moveSit()
	RightShoulder.MaxVelocity = 0.15
	LeftShoulder.MaxVelocity = 0.15
	RightShoulder.DesiredAngle = 3.14 /2
	LeftShoulder.DesiredAngle = -3.14 /2
	RightHip.DesiredAngle = 3.14 /2
	LeftHip.DesiredAngle = -3.14 /2
end

function getTool()	
	for _, kid in ipairs(Figure:GetChildren()) do
		if kid.className == "Tool" then return kid end
	end
	return nil
end

function getToolAnim(tool)
	for _, c in ipairs(tool:GetChildren()) do
		if c.Name == "toolanim" and c.className == "StringValue" then
			return c
		end
	end
	return nil
end

function animateTool()
	
	if (toolAnim == "None") then
		RightShoulder.DesiredAngle = 1.57
		return
	end

	if (toolAnim == "Slash") then
		RightShoulder.MaxVelocity = 0.5
		RightShoulder.DesiredAngle = 0
		return
	end

	if (toolAnim == "Lunge") then
		RightShoulder.MaxVelocity = 0.5
		LeftShoulder.MaxVelocity = 0.5
		RightHip.MaxVelocity = 0.5
		LeftHip.MaxVelocity = 0.5
		RightShoulder.DesiredAngle = 1.57
		LeftShoulder.DesiredAngle = 1.0
		RightHip.DesiredAngle = 1.57
		LeftHip.DesiredAngle = 1.0
		return
	end
end

function move(time)
	local amplitude
	local frequency
  
	if (pose == "Jumping") then
		moveJump()
		return
	end

	if (pose == "FreeFall") then
		moveFreeFall()
		return
	end
 
	if (pose == "Seated") then
		moveSit()
		return
	end

	local climbFudge = 0
	
	if (pose == "Running") then
		RightShoulder.MaxVelocity = 0.15
		LeftShoulder.MaxVelocity = 0.15
		amplitude = 1
		frequency = 9
	elseif (pose == "Climbing") then
		RightShoulder.MaxVelocity = 0.5 
		LeftShoulder.MaxVelocity = 0.5
		amplitude = 1
		frequency = 9
		climbFudge = 3.14
	else
		amplitude = 0.1
		frequency = 1
	end

	desiredAngle = amplitude * math.sin(time*frequency)

	RightShoulder.DesiredAngle = desiredAngle + climbFudge
	LeftShoulder.DesiredAngle = desiredAngle - climbFudge
	RightHip.DesiredAngle = -desiredAngle
	LeftHip.DesiredAngle = -desiredAngle


	local tool = getTool()

	if tool then
	
		animStringValueObject = getToolAnim(tool)

		if animStringValueObject then
			toolAnim = animStringValueObject.Value
			-- message recieved, delete StringValue
			animStringValueObject.Parent = nil
			toolAnimTime = time + .3
		end

		if time > toolAnimTime then
			toolAnimTime = 0
			toolAnim = "None"
		end

		animateTool()

		
	else
		toolAnim = "None"
		toolAnimTime = 0
	end
end


-- connect events

Humanoid.Died:connect(onDied)
Humanoid.Running:connect(onRunning)
Humanoid.Jumping:connect(onJumping)
Humanoid.Climbing:connect(onClimbing)
Humanoid.GettingUp:connect(onGettingUp)
Humanoid.FreeFalling:connect(onFreeFall)
Humanoid.FallingDown:connect(onFallingDown)
Humanoid.Seated:connect(onSeated)
Humanoid.PlatformStanding:connect(onPlatformStanding)

-- util

function waitForChild(parent, childName)
	local child = parent:findFirstChild(childName)
	if child then return child end
	while true do
		child = parent.ChildAdded:wait()
		if child.Name==childName then return child end
	end
end

function newSound(id)
	local sound = Instance.new("Sound")
	sound.SoundId = id
	sound.archivable = false
	sound.Parent = script.Parent.Head
	return sound
end

-- declarations

local sDied = newSound("rbxasset://sounds/uuhhh.wav")
local sFallingDown = newSound("rbxasset://sounds/splat.wav")
local sFreeFalling = newSound("rbxasset://sounds/swoosh.wav")
local sGettingUp = newSound("rbxasset://sounds/hit.wav")
local sJumping = newSound("rbxasset://sounds/button.wav")
local sRunning = newSound("rbxasset://sounds/bfsl-minifigfoots1.mp3")
sRunning.Looped = true

-- functions

function onSoundDied()
	sDied:Play()
end

function onState(state, sound)
	if state then
		sound:Play()
	else
		sound:Pause()
	end
end

function onSoundRunning(speed)
	if speed>0 then
		sRunning:Play()
	else
		sRunning:Pause()
	end
end

-- connect up

Humanoid.Died:connect(onSoundDied)
Humanoid.Running:connect(onSoundRunning)
Humanoid.Jumping:connect(function(state) onState(state, sJumping) end)
Humanoid.GettingUp:connect(function(state) onState(state, sGettingUp) end)
Humanoid.FreeFalling:connect(function(state) onState(state, sFreeFalling) end)
Humanoid.FallingDown:connect(function(state) onState(state, sFallingDown) end)

local runService = game:service("RunService");

delay(0, function() 
	while Figure.Parent~=nil do
		local _, time = wait(0.1)
		move(time)
	end
end)

-- regeneration
while true do
	local s = wait(1)
	local health = Humanoid.Health

	if health > 0 and health < Humanoid.MaxHealth then
		health = health + 0.01 * s * Humanoid.MaxHealth

		if health * 1.05 < Humanoid.MaxHealth then
			Humanoid.Health = health
		else
			Humanoid.Health = Humanoid.MaxHealth
		end
	end
end